Connection Process Good Morning Please can you send me a procedure to connect my Motherboard to an ATX P4 casing. The power cable have been done already but remain the power, USB and other wiring. Tai Ajibola

On your atx power supply,there is a 20 pin head wich tou have to put on a 20 pin socket on the motherboard.about the usb and other wiring,study your motherboard carefully and you will see where you will put the usb,power switch,reset switch,hdd led and power led

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Hi,
I have found the manual for your P4M800PRO-M V2.0 Motherboard. The connection diagram is on page 18 of the PDF file or page 12 in the manual. You will find the manual here: http://download.ecsusa.com/dlfileecs/manual/mb/eng/p4/P4M8OOPRO-MV2.0.zip or by clicking Here.
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You need to connect the 20 or 24 pin connector to the ATX power slot on your motherboard, its the long rectangle one. You will also need to connect the CPU power to the CPU power slot, that is the 8 pin one. I hope this helps.

Two possible causes - either you have installed it badly and it shorts to the case (take it out of the case and try it there) or not all the necessary cables were connected (check especially the power cables and the power button).

I tried different power supply but its still not powering up. But when i remove the 4 pin 12V cable from power supply the cpu fan is rolling, it means that the power supply is working but when i tried to connect the 4 pin then the cpu fan stop just a second and never rolled on. The main problem is the 4 pin, the model is Asus P5P800-VM. I tried to reset the cmos and replaced the battery but it wont work out. Please help me!!!